Molekula
Calcium oxalate monohydrate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Calcium oxalate monohydrate is a white, crystalline solid used in analytical chemistry and as a reagent in precipitation reactions. It also serves in ceramic glaze formulation, in separating rare earth metals during metal extraction and refining, and in analytical determination of calcium. It is also employed in studies of kidney stone formation and mineral analysis. Available with a CAS number of 5794-28-5, its molecular formula is (COO)₂Ca · H₂O and molecular weight is 146.11 g/mol. It should be stored at ambient temperature and handled with caution due to its warning signal word. Molekula supplies calcium oxalate monohydrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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5 g — £29.00 per pack ex VAT · £34.80 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | light grey powder |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90032779 |
| CAS Number | 5794-28-5 |
| IUPAC Name | calcium;oxalate;hydrate |
| Molecular Formula | (COO)2Ca · H2O |
| Molecular Weight | 146.11 |
| Exact Mass | 145.9528 |
| SMILES | C(=O)(C(=O)[O-])[O-].O.[Ca+2] |
| InChIKey | LQHWSGSWNOHVHO-UHFFFAOYSA-L |
| InChI | InChI=1S/C2H2O4.Ca.H2O/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);;1H2/q;+2;/p-2 |
| PubChem CID | 165350 |
| REACH Code | Y110 |
| HTS Code | 2917.19.70.50 |
| Tariff Code | 2917198090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
- H312 Harmful in contact with skin
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, English (US), German, Italian, Russian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- C2H2CaO5
- CALCAREA OXALICA
- calcium ethanedioate hydrate (1:1:1)
- Calcium ethanedioate--water (1/1/1)
- Calcium oxalate hydrate
- Calcium oxalate monohydrate CRS
- Calcium oxalate xhydrate
- Ethanedioic acid, calcium salt (1:1), monohydrate
- Ethanedioic acid, calcium salt, hydrate (1:1:1)
- LQHWSGSWNOHVHO-UHFFFAOYSA-L
Frequently asked questions
What is calcium oxalate monohydrate used for?
It is primarily used as a reagent in analytical chemistry for calcium ion determination and as a precursor in the synthesis of other calcium compounds.
What is the chemical formula and molecular weight of calcium oxalate monohydrate?
The formula is (COO)2Ca · H2O with a molecular weight of 146.11 g/mol.
How should calcium oxalate monohydrate be stored?
It should be stored at ambient temperature in a dry, well-ventilated area away from incompatible materials.
What grade is available for calcium oxalate monohydrate?
Molekula offers it in analytical grade, suitable for laboratory and research applications.
Can Molekula supply calcium oxalate monohydrate in bulk?
Yes, Molekula can supply calcium oxalate monohydrate in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with an order of calcium oxalate monohydrate?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.